Joseph gillet



I (No Model.)

J. GILLET. PROCESS OF, MAKING SHEET METAL VBSSELS. No. 539,051. v I Patented May 14, 1895.

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UNITE STATES ATENT JOSEPH GILLET, OF MILWAUKEE, WISCONSIN, ASSIGNOR 'TO THE GEUDER & PAESCHKE MANUFACTURING COMPANY, OF SAME PLACE.

PROCESS OF MAKING SHEET-METAL VESSELS.

SPECIFICATION forming part of Letters Patent No. 539,051, dated May 14, 1895.

Application filed September 1, 1892. Serial No. 444,778. (No specimens.)

To all whom it may concern: formed in the base, the bottom edge of the Be it known that I, JOSEPH GILLET, of Milbody has been turned inwardly by a separate waukee,in the countyof Milwaukee and State operation, and then sprung over the bottom of Wisconsin, have invented certain new and into the groove or crease previously formed 5 useful Improvements in Making Sheet-Metal in the base, and by a final operation the base Vessels; and I do hereby declare that the folhas been upset to clasp the inturned edge of lowing is a full,-clear, and exact description the body, as shown in Fig. 4. The bead c of the invention, which will enable others around the edge of the base has also been skilled in the art to which it pertains to make formed heretofore :by a distinct operation. 50 IO and use the same, reference being had to the By this method of assembling, joining and accompanying drawings, and to the letters of finishing the parts, a number of separate opreference marked thereon, which form a part erations, involving considerable time and of this specification. labor are not only necessary, but if the in- My invention relates to the manufacture of turned flange on the body is made to fit closely 6 coal hods and other sheet metal vessels. Its in passing over the bottom into the groove main objects are to facilitate assembling and formed for its reception in the base, great joining the parts, to insureaperfect joint betrouble and annoyance are occasioned in astween the body and base, and to simplify and sembling the parts, and if it is not made to cheapen the manufacture of articles of this fit closely, imperfect joints are produced, por- 7o class. tions of the edge of the inturned flange of the It consists essentially of the peculiar body not being clasped between the folds method of assembling and forming the joint formed by upsetting the base upon it. between the body and base and of finishing By my improved process a number of operathe base, hereinafter particularly described tions are not only dispensed with, but the an- 2 5 and pointed out in the claims. noyance of assembling the parts is avoided, In the accompanying drawings like letters and a perfect joint insured. The bottom B designatethe same partsin the several figures. formed with the base 0 as above mentioned, Figure 1 is a vertical axial section of the is placed in the body, as shown in Figs. 1 and assembled parts of a coal-hod and a side ele- 2, with the edge of the body resting in the goyation of a portion of suitable devices for angle between the belt 0 and the outwardly holding them in position to be operated upon turned portion of the base C. The hod or and for simultaneously bending the body into vessel is then placed preferably bottom side. the base and turning a bead on the base; and up on a suitable rotary table or support E, Figs. 2 t0 4., inclusive, are sectional views, on with the bottom resting on a support- 6, car- 3 5 an enlarged scale, illustrating the several ried by the support E,and is moved upwardly steps of the process, portions of the supportagainst a die D, which fits loosely into the reing device and grooving and beading wheels cessed side of the base. The die D and supbeing shown in section in Fig. 3 and portions portE being rotated, a wheel F or other creasof the compressing-dies being shown in secing or grooving instrument, is forced against 0 40 tion in Fig. 4. the outside of the edge of the body A and Referring to the drawings, A represents the belt a of the base opposite an annular groove body of a hod or other sheet metal vessel; B, d in die -D, thereby simultaneously forming the bottom, preferably formed integrally with an inturned crease or groove in the base, and a molded rim or base 0, having. an approxiturning the edge of the body into said groove 5 45 mately vertical or cylindrical belt or band 0 or crease, as shown in Fig. 3. The body is next to the bottom, and an outwardly ,prothus permanently and securely joined to the jecting horizontal flange c at its outer edge. base in the proper position for the final op- By the process heretofore commonly foloration, which consists of upsetting and foldlowed of assembling and joining the body, ing the base over the inturned edge of the 50 bottom and base of similarly constructed vesbody, as shown in Fig. 4, by dies such as H sols, an annular crease or groove has been and I, or by other suitable-means. In this way the enfolding of the inturned edge of the body by upsetting the base on opposite sides of the groove previously formed therein, and a permanent tight joint extending entirely around the vessel are insured. Simultaneously with the formation of the groove or crease in the base and the inturning of the edge of the body therein, the flange c' on the edge of the base is rolled into a bead c by a bead-turning Wheel such as G, on the same shaft with the groove-forming wheel F, or by any other suitable means or instrument. It will thus be observed by the process as above described, I am enabled to dispense with two operations inassembling and joining the body and base and in finishing the edge of the base, viz: by the separate formation of the inturned flange on the body and the bead around the edge of the base, much annoyance and waste of time are avoided in assembling the parts and a better joint insured.

The lower part of die D is made enough smaller in diameter than the bottom and base to permit of its being withdrawn therefrom after the body and base have been turned into the groove d by the wheel F, as shown in Fig. 3.

Some of the advantages hereinbefore mentioned, viz: saving of time in assembling the parts and insuring a perfectly tight joint, will be secured when the bottom and base'are made in separate parts, also when an inturned groove orcrease is formed in the base before inserting it in the body; although I prefer to apply the invention in the manner hereinbefore set forth, dispensing with unnecessary operations and thereby saving time and labor.

The rotary support E and the grooving and heading rollers F and G are such as are com monly used in machines designed for the class of sheet metal work to which my invention relates, and as they do not in themselves constitute a part of my invention,it is not necessary to particularly show and describe them or their necessary attachments or connections, which are familiar to those skilled in this kind of work.

I claim 1. The process of making sheet metal vessels which consists in forming the base primarily with an upwardly projecting approximately cylindrical belt and an outwardly projecting rim below said belt, inserting said belt into the lower open end of the body which is primarily formed without flange or bend, simultaneously forming a groove in the base and turning the overlying portion of the body into said groove and in then upsetting or compressing the base over and against the inturned portion of the body, substantially as and for the purposes set forth.

2. The process of making sheet metal vessels which consists in forming the base with an approximately vertical or cylindrical belt, placing the lower edge of the body around said belt, simultaneously forming an annular groove in said belt and turning the edge of the body into said groove and of then folding and compressing the base on opposite sides of said groove over the inturned edge of the body, substantially as and for the purposes set forth.

3. The process of making sheet metal vessels which consists in forming the base with an upwardly projecting belt and an outwardly turned flange below said belt, inserting said belt into the lower end of the body and then simultaneously forming an inturned groove in the base, turning the overlapping portion of the body into said groove and turning the flange at the edge of the base into abead, substantially as and for the purposes set forth.

4. The process of joining the body and base of a sheet metal vessel which consists in forming the base with an upwardly projecting belt, inserting the upturned belt of the base into the lower open end of the body and then turning the overlapping portion of the body into the base and finally folding or compressing the groove thus formed in the base over the inturned portion of the body, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

J OSEPI'I GILLET.

Witnesses:

OTTO O. KNELL, CHAS. L. Goss. 

